For the barotropic potential vorticity equation (named the barotropic model) on a β-plane channel its solution is a stationary, wave-like pattern under a certain thermal forcing, while a quasi-periodic oscillation between two essential flow patterns appears if north-south thermal heating and wave-like topography are added as the .
尽管下垫面的波状地形也能强迫一个类似的准周期振荡,但弱西风流型是对称的,不像大气中的弱西风流型。
There is a wide noise component (< 3 Hz) and a QPO (4-12Hz) in each of the transition states, while in the soft state, there is no significant QPO, and its PDS can be characterized perfectly by a broken power law.
运用自回归功率谱研究CygX－1X辐射的频谱特征，结果显示CygX－1转换态和高／软态时变频谱的连续成分，可以统一由有截断的幂律加噪声成分描述，转换态存在小于3Hz的宽峰结构及准周期振荡（QPO）成分（4－12Hz），而高／软态完全可由截断幂律谱描述，不存在显著的QPO。
We find that the oscillation period of the coupling with respect to the thickness of nonmagnetic layer is related with the pairs of magnetic-nonmagnetic layer and the density of electrons in the superlattice.
在相同的参数下，振荡周期与铁磁－非磁层的对数有关。
The oscillation period and the oscillation amplitude relate to CO concentration,heating power PF and so on.
结果表明，振荡周期及振荡幅度与ＣＯ浓度、热丝加热功率等因素有关
The Quasi-Periodic Oscillation of Solar Radio Burst Observed on April 9, 1989
1989年4月9日射电爆发中的准周期振荡特征
Among these characteristics, quasi-periodic oscillations led us to believe the possibility of existing oscillations in the corona.
在这些特征中,准周期振荡使我们认为,在日冕上可能存在着快速振荡.
Transition in the Periodic,quasi-Periodic and chaotic calcium oscillations
周期,准周期和混沌的复杂钙振荡之间的转换
Evolution of Summer Precipitation Quasi-Biennial Oscillation in Eastern China
中国东部夏季降水准两年周期振荡的长期演变
Terahertz Generation from Photonic Bloch Oscillations in One-Dimensional Quasi-Periodic Photonic Crystal
一维准周期光子晶体的太拉赫兹布洛赫振荡源
On Inhomogeneous Periodical Interval of Quasi-Phase-Matching Optical Parametrical Oscillator;
准相位匹配光参变振荡非均匀周期间隔
QBO of Stratosphere Water Gas in Equator;
赤道地区平流层水汽准两年周期振荡特征
The Correction on an Oscillating Period Calculating Formula of 555 Voltage Controlled Oscillator;
555压控振荡器振荡周期计算公式的修正
Each machine cycle takes 12 oscillator or clock cycles.
每个机器周期为12个振荡器或时钟周期。
seismometer free period
地震检波器自由振荡周期
Shake on High Platform,Periodic Convergence and Shortage Imbalance--Feature Analysis of Medium-to-long Term Economic Cycle in China;
高位振荡 周期收敛与短缺失衡——中国中长期经济周期特征分析
Experimental Research on Four Optical Cycle Pulse Generation in Ti:sapphire Laser;
四个光学周期脉冲钛宝石振荡器的实验研究
The two-dimensional periodic structure in a bifrequency magnetically insulated transmission line oscillator
双频磁绝缘线振荡器二维周期结构研究
Research on the experiment of liquid leaking back and forth through a small hole
糖水-水小孔泄漏振荡周期与小孔孔径的关系
Low Threshold Singly-resonant Optical Parametric Oscillator Based on Periodically Poled MgO:LiNbO_3
低阈值单谐振周期极化掺镁铌酸锂光参量振荡器
It is shown that the evolutions of fidelity exhibit oscillations with equi-amplitude and perfect periodicity if the frequency of Rabi oscillation is the linear function of the photon number.
研究表明 ,当拉比振荡频率与光子数成正比时保真度表现出周期性的等幅振荡。
The Modulation of Quasi-biweekly Oscillation on Tropical Cyclone Activity over the Western North Pacific
西北太平洋大气准双周振荡对热带气旋活动的影响
A high weathercock frequency is essential for the stability of the guidance loop.
从制导回路的稳定性角度来看，短周期振荡频率高是基本的。